Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Pressure loss in compressed air pipe lines.
Compressed air pipeline pressure drop in
kg/m pipe can be estimated for typical entering pressures in the diagrams below. The diagrams are calculated for 2 per 100 m schedule 40 pipes.
Other dimensions or pressures can be calculated with the
Compressed Air Entering Pressure 5 kg/cm 2
1 kg/cm 2 = 0.98 bar = 735 mmHg = 10000 mmH 2O = 14.2 psi 1 m 3/min = 0.017 m 3/s = 60 m 3/h = 1000 liter/min = 35.3 cfm 1 m (meter) = 3.2808 ft = 39.37 in Compressed Air Entering Pressure 7.5 kg/cm 2
Compressed Air Entering Pressure 10 kg/cm 2
Compressed Air Entering Pressure 13 kg/cm 2
Compressed air pressure drop for pipes other than Schedule 40
Compressed air pressure drop in pipes other than schedule 40 can be calculated as
dp = dp 40 (d 40 / d) 5 (1)
dp = actual pressure drop (bar per 100 m pipe)
dp 40 = pressure drop in schedule 40 pipe from the table or diagram above (bar per 100 m pipe)
d 40 = inside diameter schedule 40 pipe (inches)
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